[("tests/examples/Extensions27.hs:1:1-58: Warning: Unused LANGUAGE pragma\nFound:\n {-# LANGUAGE DeriveGeneric, GeneralizedNewtypeDeriving #-}\nPerhaps:\n {-# LANGUAGE DeriveGeneric #-}\nNote: Extension GeneralizedNewtypeDeriving is not used\n",[ModifyComment {pos = SrcSpan {startLine = 1, startCol = 1, endLine = 1, endCol = 59}, newComment = "{-# LANGUAGE DeriveGeneric #-}"}])]